<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>await</title>
</head>
<body>
    <script>
        async function main(){
            let p = new Promise((resolve,reject)=>{
                // resolve('OK');
                // reject('Err')
                throw 'err'
                
            })
            //1、右侧为promise的情况
            /*let res = await p;
            console.log(res);*/

            // 2、右侧为其它类型的数据
            /*let res2 = await 123;
            console.log(res2);*/

            // 3.如果promise是失败的状态
            try{
                let res3 = await p;
            }catch(e){
                console.log(e);
            }
        };
        main();
        
    </script>
    
</body>
</html>